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Commentary

Meis: New friends of Pax

Article: e976014 | Received 24 Mar 2014, Accepted 08 Oct 2014, Published online: 12 Jan 2015

Figures & data

Figure 1. (A) Overlapping expression of Meis1 and Meis2 in relation to expression of HOX genes and members of the Pax4/6, Pax3/7 and Pax2/5/8 families in the mouse neural tube. Schematic views of mouse embryos at E11 are shown; the expression domains of the respective HOX genes is given without indicating any rhombomere-specific differences in gene expression levels. In the CNS anterior of the rhombomere 1–2 boundary, Meis1 and Meis2 are co-expressed with Pax3/7 in the mesencephalon, with Pax2/5/8 in the rostral mid-hindbrain boundary region and with Pax6 in the eye anlage. [di: diencephalic vesicle; mes: mesencephalic vesicle; met: metencephalic vesicle; o.s.: optic stalk; r: rhombomere; s.c.: spinal cord; tel: telencephalic vesicle.] (B) Schematic drawing of the major protein domains found in Meis-family members and different PAX proteins. Protein domains are not drawn to scale. MEIS family proteins contact members of the PBC-family of TALE-homeodomain proteins through MH-B, the C-terminal half of the bipartite MEIS-homology domain. [MH-A / MH-B: MEIS-homology domain A / B; TALE-HD: 3 amino acid loop extension homeodomain; paired: paired-domain; HD: homeodomain.]

Figure 1. (A) Overlapping expression of Meis1 and Meis2 in relation to expression of HOX genes and members of the Pax4/6, Pax3/7 and Pax2/5/8 families in the mouse neural tube. Schematic views of mouse embryos at E11 are shown; the expression domains of the respective HOX genes is given without indicating any rhombomere-specific differences in gene expression levels. In the CNS anterior of the rhombomere 1–2 boundary, Meis1 and Meis2 are co-expressed with Pax3/7 in the mesencephalon, with Pax2/5/8 in the rostral mid-hindbrain boundary region and with Pax6 in the eye anlage. [di: diencephalic vesicle; mes: mesencephalic vesicle; met: metencephalic vesicle; o.s.: optic stalk; r: rhombomere; s.c.: spinal cord; tel: telencephalic vesicle.] (B) Schematic drawing of the major protein domains found in Meis-family members and different PAX proteins. Protein domains are not drawn to scale. MEIS family proteins contact members of the PBC-family of TALE-homeodomain proteins through MH-B, the C-terminal half of the bipartite MEIS-homology domain. [MH-A / MH-B: MEIS-homology domain A / B; TALE-HD: 3 amino acid loop extension homeodomain; paired: paired-domain; HD: homeodomain.]